Characters (so far) returning for Season Two will be:

• Constance Langdon (Jessica Lange)
• Tate Langdon (Evan Peters)
• Nora Montgomery (Lily Rabe)
• Billie Dean Howard (Sarah Paulson)
• Chad Warwick (Zachary Quinto)

Ryan Murphy has not said anything about the characters, only they will be playing the opposite of their original character! Murphy hopes to being filming in July this year!

(Source: -american-horror-story)